Colours |
Amount
(mg L-1) |
Intra-day precision* |
Inter-day precision* |
Average peak area |
% RSDr |
SE |
Average peak area |
% RDSR |
SE |
Dimethyl yellow |
5
10 |
723453
1296319 |
0.78
1.21 |
3267
9079 |
715855
1310675 |
1.54
1.55 |
6374
11708 |
Sudan I |
5
10 |
395516
644395 |
4.19
1.27 |
9128
4724 |
380424
618884 |
2.46
3.78 |
5342
13510 |
Sudan II |
5
10 |
189997
331961 |
1.27
2.72 |
1396
5217 |
190848
337181 |
0.98
1.41 |
1083
2751 |
Sudan III |
5
10 |
256179
413646 |
4.32
2.96 |
6390
7072 |
254170
420837 |
4.19
2.64 |
6150
6430 |
Sudan IV |
5
10 |
179689
317106 |
0.62
3.44 |
644
6307 |
179494
325494 |
0.70
1.75 |
724
3299 |
* Data is derived from triplicate values |